Finding the Fourth Proportional to 86,155.92, 129,246.84 and 26,983.80
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Solution
The fourth proportional to 86,155.92, 129,246.84 and 26,983.80 is: 40,479.76
Step by Step Solution
- Step 1: Write the proportion equation
86,155.92 : 129,246.84 = 26,983.80 : x - Step 2: Convert to fraction form
86,155.92/129,246.84 = 26,983.80/x - Step 3: Cross multiply
86,155.92x = 129,246.84 × 26,983.80 - Step 4: Simplify right side
86,155.92x = 3,487,570,881.19 - Step 5: Solve for x
x = 3,487,570,881.19/86,155.92 - Step 6: Final answer
x = 40,479.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.